This work describes the preparation of concentrated alumina suspensions based on bio-sourced additives with a low environmental impact and rheological properties adapted to tape casting process. Natural polysaccharides extracted from plants fruits (pectin, psyllium…) were characterized (molar weight) identified as promising binders for substituting classical organic petrochemical industry. The ...

The need for sustainable zero-carbon fuels to substitute the conventional fossil in transport field becomes unavoidable overcome depletion of petroleum reserves and global warming. Metal are promising energy-carrying materials that can be regenerated through carbothermal reduction their oxide combustion products. Their use is economically beneficial environmental-friendly when oxides recycled u...

In limestone calcined clay cements (LC3), more hemicarboaluminate and monocarboaluminate is observed, as compared to other blended cements, from the reaction of metakaolin with limestone. this study, it shown that formation these carboaluminate phases, predominantly occurs during a “third” hydration peak, after main alite aluminate peaks. The influence content, level sulfate addition water bind...

The paper presents the results of research concerning peculiarities modern High Performance Concretes based on cementitious systems "Portland cement – active mineral additives micro fillers superplasticizers accelerators hardening". Physico-chemical regularities structure formation super plasticized are established. It is shown that secondary fine ettringite due to interaction alumina with calc...

Lactose and tannin are eco-friendly alternatives to commonly used binders for carbon-bonded alumina filters that applied in steel melt filtration. The investigation of binder pyrolysis is a contribution understand the production process these filters. In this work, lactose tannins gallic acid, ellagic tannic acid were investigated by Raman spectroscopy. measured situ an argon-filled heating cha...

Catalytic materials used in many industrial and energy-conversion processes must be durable to maximize their useful lifetimes, especially when expensive precious metal catalysts are utilized. Conventional methods of catalyst formation typically use synthetic stabilizers and reductants to form nanostructures with high surface area and catalytic activity. Synthesized nanomaterials are then mixed...

Strength failure persists both in structural and mechanical analysis. One of its prominent characteristics is the adequate provision for parameters that minimise or maximise strength objectives while satisfying boundary conditions. The previous optimisation concrete usually neglects mix design mechanisms induced by optimisation. Recent efforts to accurately optimise compressive have factored so...

Abstract In recent years the word sustainability has become a priority of many researchers. this regard, evolutions were put forth in concrete industry one them is Geopolymer concrete. Ground granulated blast furnace slag (GGBS) used as source material which rich alumina and silica contents, forms silicate gel when mixed with an alkali solution sodium hydroxide then binds aggregate. Till now re...